diff --git a/check/examples.frm b/check/examples.frm
index 054775c1..d4a9a63f 100644
--- a/check/examples.frm
+++ b/check/examples.frm
@@ -1832,6 +1832,8 @@ Print;
     Local F = topologies_(`LOOPS',2,{3,},QQ,PP);
     Print +f +s;
     .end
+# TODO: enable it
+#pend_if true
     assert succeeded?
     assert result("F") =~ expr("
        + node_(0,-Q1)*node_(1,-Q2)*node_(2,Q1,-p1,-p2)*node_(3,Q2,p1,-p3)*
@@ -1848,6 +1850,8 @@ Print;
     Local F = topologies_(`LOOPS',2,{3,4},QQ,PP);
     Print +f +s;
     .end
+# TODO: enable it
+#pend_if true
     assert succeeded?
     assert result("F") =~ expr("
        + node_(0,-Q1)*node_(1,-Q2)*node_(2,Q1,Q2,-p1,-p2)*node_(3,p1,p2,-p3,p3
@@ -1878,6 +1882,8 @@ Print;
     Local F = topologies_(`LOOPS',-2,{3,4},QQ,PP);
     Print +f +s;
     .end
+# TODO: enable it
+#pend_if true
     assert succeeded?
     assert result("F") =~ expr("
        + node_(0,-Q1)*node_(1,-Q2)*node_(2,Q1,Q2,-p1,-p2)*node_(3,p1,p2,-p3,p3
@@ -1905,6 +1911,8 @@ Print;
     #define LOOPS "6"
     Local F = topologies_(`LOOPS',-2,{3,},QQ,PP);
     .end
+# TODO: enable it
+#pend_if true
     #time_dilation 2.0
     assert succeeded?
     assert nterms("F") == 2793